Finding the Fourth Proportional to 9,223.50, 12,729.39 and 5,686.62

Step by Step Solution

1. Step 1: Write the proportion equation
   9,223.50 : 12,729.39 = 5,686.62 : x
2. Step 2: Convert to fraction form
   9,223.50/12,729.39 = 5,686.62/x
3. Step 3: Cross multiply
   9,223.50x = 12,729.39 × 5,686.62
4. Step 4: Simplify right side
   9,223.50x = 72,387,203.76
5. Step 5: Solve for x
   x = 72,387,203.76/9,223.50
6. Step 6: Final answer
   x = 7,848.13